| 摘要 |
PROBLEM TO BE SOLVED: To obtain both of repelling property against printing ink of a silicone rubber layer and removing property by ablation, and to obtain a planographic printing plate having excellent sensitivity, reproducing property of an image and printing durability. SOLUTION: This laser-direct waterless photosensitive planographic printing plate consists of a base body, and from the base body, a photosensitive layer containing at least a near IR absorbent, and silicone rubber layer in this order, and the silicone rubber layer consists of a silicone rubber compsn. containing linear organopolysiloxane having hydroxyl groups on both ends of the molecule by >=80wt.% and <98wt.% of the whole solid content, and reactive silane compd. by >=2wt.% and <20wt.% of the total solid component of the silicone rubber layer. |
